Final answer:
The act of Section 20 GBH (inflicting GBH) refers to d) Unlawful act causing grievous bodily harm. It is a legal term used in criminal law to describe the offense of intentionally causing severe physical harm to another person.
Step-by-step explanation:
The act of Section 20 GBH (inflicting GBH) refers to d) Unlawful act causing grievous bodily harm.
This is a legal term used in criminal law to describe the offense of intentionally causing severe physical harm to another person. It is a serious crime that carries significant penalties.